There is a 30 foot run of 2 inch PVC pipe from my kitchen sink to the 4 inch pipe that goes through my basement wall to connect to my septic tank. The 2 inch pipe has build-up of material on the walls of the pipe. In Lowes, I saw a product, Zep Drain Care Build-Up Remover, that is advertised to use enzymes to remove this build-up over time.
(1) Does this material really work?
(2) Is is safe for my septic tank?

Thank you.